| arguments to this method are incorrect | = note: expected reference `&String` found reference `&{integer}` note: method defined here-->/Users/wangyang/.rustup/toolchains/stable-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/cmp.rs:840:8| 840 | fn cmp(&self, other: &S...
usestd::io;fnmain(){println!("Guess the number!");println!("Please input your guess.");letmutguess=String::new();io::stdin().read_line(&mutguess).expect("Failed to read line");println!("You guessed: {}",guess);} 现在让我们一起来运行下这个程序,看看是否可以跑起来; $ cargo run ...
rs:10:21 | 10 | let c = num_add(1.2,2); | --- ^^^ expected `i32`, found floating-point number | | | arguments to this function are incorrect | note: function defined here --> src/main.rs:7:8 | 7 | fn num_add(a: i32, b: i32) -> i32 { | ^^^ --- 你要解决这...
8 | console_log(str); | --- ^^^- help: try using a conversion method: `.to_string()` | | | | | expected `String`, found `&str` | arguments to this function are incorrect | note: function defined here --> src/main.rs:11:4 | 11 | fn console_log(str: String) { | ^^...
| arguments to this method are incorrect | = note:expected reference `&_` found struct `astrix_consensus_core::Hash` note:method defined here --> /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/collections/vec_deque/mod.rs:1769:12help:consider borrowing here ...
error[E0308]: mismatched types--> src/lib.rs:5:30|5 | index.get(&id).unwrap_or(&[])| --- ^^^ expected `&Vec<i32>`, found `&[_; 0]`| || arguments to this method are incorrect|= note: expected reference `&Vec<i32>`found reference `&[_; 0]`help: the return type of ...
离开JVM,我们来到 Go,一种我目前正在学习的语言。非常简短的错误消息(一行),并有很好的解释type Error1 has no field or method error 代码语言:javascript 复制 $ go build go/Error1.go # command-line-arguments go/Error1.go:12:7:e.errorundefined(type Error1 has no field or method error) ...
In general, code completion helps you avoid getting an E0599 message. If you’re not seeing a suggestion for the method call you need, the real issue might be an incorrect callee type. There’s another aspect of this error worth mentioning: in many contexts, you have control ove...
io::stdin().read_line(&mutguess).expect("Failed to read line"); 但是,一行过长的代码很难阅读,所以最好拆开来写。当您使用.method_name()语法调用方法时,用换行和空格来拆分长代码行通常是明智的。现在让我们来看看这行代码干了什么。 如前所述,read_line将用户输入的任何内容放入我们传递给它的字符串...
These APIs are now stable in const contexts: §char::from_u32_unchecked(function) §char::from_u32_unchecked(method) §CStr::count_bytes §CStr::from_ptr Compatibility notes Split panic hook and panic handler arguments We have renamedstd::panic::PanicInfotostd::panic::PanicHookInfo. The ...